Sony CFSB-5-L Mk2 Schematic

5-4. SCHEMATIC DIAGRAM — TUNER SECTION — • Refer to page 13 for IC Block Diagram.

CFS-B5LMK2

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/
specified.

¢

•

• C : panel designation.

• U : B+ Line.

• H : adjustment for repair.

• Pow er voltage is dc 9 V and fed with regulated dc power

: internal component.

supply from battery terminal.

4

W or less unless otherwise

– 15 – – 16 –

(Page 20)

• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : MW/LW, SW

• V oltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc­tion tolerances.

• Signal path.

F : FM/SW
f : MW/LW

5-6. SCHEMATIC DIAGRAM — MAIN SECTION —

CFS-B5LMK2

• Wavef orm (MODE:REC)

1

35Vp-p

15mS

T301

(Page 16)

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.

• C : panel designation.

Note: The components identified by mark ! or dotted line

with mark ! are critical for safety.
Replace only with part number specified.

• U : B+ Line.

• Total current is measured with no cassette installed.

• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.

• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
< > : PB
<< >> : REC

• V oltages are taken with a V OM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc­tion tolerances.

• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc­tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : FM
E : PB
a : REC

– 19 – – 20 –